— Humic acid sourced from coal exhibits greater antiviral activity than samples from peloid and peat, as well as synthetic iterations of the molecule, such as caffeic acid or chlorogenic acid, versus select viral challenges (Zhernov et al., 2021). Zhernov et alia (2021) further identified the highest antiviral activity in the most hydrophobic and ...

 — Further, rare earth elements, carbon fiber and humic acid from coal were briefly reviewed with the aim of initiating a debate on the high value-added products that can be obtained and the technologies that can be adopted to develop the coal industry of Mexico. Coal proven reserves in Mexico are of 1211 million tonnes and, from 1970 to …

 — Five coal samples obtained from Chinese coal-producing areas were oxidized by hydrogen peroxide (H2O2), and humic acids (HAs) were derived from original coal …

 — Humic acids: Complex acids that contain groups of ions arranged to enable chelate complexes. Chelate complexes enable humic acids to regulate the bioavailability of metal ions present in a plant's grow environment. Humic acids are water-soluble in water with a pH higher than two. They are dark brown to black in color. Fulvic acids: A type of ...

SOURCES OF HUMIC ACID Humic acid can be recovered in some quantity from peat, peat moss, some forest soils, lignite, and brown coal (Burdick, 1965). Concentrations of humic acids, and their salts (which are properly termed humates), expressed in terms of humic acid, have reached 70 percent by weight in some samples col-

 — According to the above, the quality of the coal of the Northeast Mexico could be a perfect match to extract humic substances; therefore, research is being developed to evaluate the humic acid extraction yield from leonardite.

FAQ: Top 10 Questions About Humic Acid. ... (Humates sourced from northwest New Mexico, where Earthgreen sources its material, have proven for decades be the world's premium source of humic acids.) ... and heat …

 — The largest commercial sources for humate are found in New Mexico, Utah, North Dakota, Wyoming and Texas, where humate sources are largely associated with nearby seams of coal and may be a byproduct of strip coal mining. Some of these operations extract Leondardite, the name given to a form of highly oxidized, low grade …

 — To easily make humic acid at home, you need to collect the source materials, carry out the extraction process, the neutralization process, and the precipitation process, and then dry up and store the acid to be used to boost plant growth in your garden.. 1. Collect the Source Materials. Collecting the source material is the first step. The source …

Coal in New Mexico • New Mexico has had a rich coal mining history • sub-bituminous to bituminous grade ... • Weathered coal, develops high levels of humic acids • Used as a soil amendment and can help remediate certain pollutants • Currently mined by …

km west of Cuba, New Mexico (Fig. 1). Hu-mate and humic substances are formed from the decay of plants and the weathering of the coal deposits. Humic substances are complex com- ... acids, for weathered coal and humic-acid containing organics found in the pore spaces in sandstones. The later usage is ap-plied throughout the rest of this paper.

 — Abstract. Understanding chemistry and the effects of humic substances on plant growth is important for using organic fertilizer or soil …

Coal-based humic acid (CBHA) is an ideal precursor for the preparation of carbon materials due to its high aromaticity and abundance of oxygen-containing functional groups. The resulting materials often exhibit unique optical properties due to various intramolecular and intermolecular interactions. In this work, full-color luminescent carbon ...

 — Preparing humic acids is considered to be an economic choice for the utilization of lignite. Herein regenerated humic acids (RHAs) have been obtained by means of hydrolysis of Chinese-aged lignite with NaOH as the catalyst. It has been verified that the hydrothermal process has enabled 67% increase in the extraction yield of humic acids …

 — The properties of the initial soil samples are shown in Table S1. The tested humic acid (HA) was weathered coal HA taken from Shandong Nongda Fertilizer Technology Co., Ltd., and the basic ...

 — Humic acids (HA) of coal, as a group of natural substances, have much in common with natural humus as far as the character of their structure is concerned. There are no principal differences between the humic acid of soils, though there are differences in the structural details as their formation depends on bioclimatic factors, stage of ...

It is associated with weathered coal and humate-rich mudstones and shales in the Upper Cretaceous Fruitland Formation in northwestern New Mexico. These humate-bearing …

 — Humic acids of brown coal before and after mechanochemical treatment under various conditions were studied by TG and DSC (carried out both in air and in an inert atmosphere, with the temperature range of 300–800 K), and gel permeation chromatography. The obtained data were used to calculate the values of the energy of …

Humic acid can improve soil nutrients and promote plant growth. Weathered coal and lignite can be used as agricultural resources due to high humic acid content, but their impact on soil NH 3 volatilization and CO 2 emissions are yet to be determined. In this study, a field experiment was carried out to compare the effects of four types of humic acid isolated …

 — The second mine is in New Mexico, from which we produce granular and liquid humic and fulvic acid products for direct application to soil, as well as for use by other manufacturers in the production of their own humic-based products. The 5 BHN humic-based product brands include:

Our humic-based products have been developed for agriculture (Huma Gro ®, Mesa Verde Humates ®, Fertilgold ® organics); horticulture, turf, and ornamentals (Huma Gro ® Turf); and soil & wastewater bioremediation …

 — The interest in the bioactivity of humic substances (HS, including fulvic and humic acids) has been growing in recent years due to their increasing use as biostimulants in agriculture [12, 18] and much research has been conducted to elucidate the mechanisms of such a bioactivity [4, 28, 36, 41].HS are extracted from soils, sediments, composted …

 — This provided a prospective use for the humic acids derived from weathered coal, especially HA 6∼7. The nonprotonated C calculated by CP/TOSS with DD is located in the chemical shift regions of 64–93 ppm and 93–143 ppm. When compared with nonprotonated aromatic C (aromatic C-C), the relative proportion of nonprotonated O …

and coal-like appearance and often found at shallow depths overlying more compact coal in a coal mine. Leonardite, named after A. G. Leonard in recognition of his research contributions to the substance and humified organic matter, contains 30–80% humic acid (HA) and can be used as an organic fertilizer or a soil amendment.[]

Humic acids and related pigments, collectively referred to as humic substances, are widely distributed in soils, natural waters, marine and lake sediments, peat bogs, carbonaceous shales, lignites, brown coals and other miscellaneous deposits [1–5]. ... Humic Acid; Fulvic Acid; Brown Coal; COOH Group; These keywords were added by machine and ...

 — Further, rare earth elements, carbon fiber and humic acid from coal were briefly reviewed with the aim of initiating a debate on the high value-added products that can be obtained and the...

The aim of this study was to reveal the mechanism of nitrogen and phosphorus adsorption by humic acids (HAs). HAs were extracted from weathered coal and used as adsorbents of urea-N and phosphate-P in water. The effect of different factors was considered, such as the initial concentration of urea-N …

 — Coal gangue (CG), one of the world's largest industrial solid wastes produced during coal mining, is extremely difficult to be used owing to its combined contents of clay minerals and organic macromolecules. This study explored a novel process of degrading the harmful organic compounds in the CG into humic acid using a biological method …

Humic acid is a complex organic substance that occurs naturally in soil, peat, and coal. It is formed through the decomposition of plant and animal matter over thousands of years. Humic acid is rich in carbon, hydrogen, oxygen, nitrogen, and sulfur, and is known for its ability to improve soil fertility and promote plant growth.

Non-power uses of coal Humic acids Carbon-based materials ABSTRACT ... To assess the production of coal in Mexico is necessary to contextualize the reserves of the country with those of other countries, as well as to bear in mind the coal alternative non-power uses. It is worth mentioning that in some cases is used data of proven or total